With growing no. of vehicles, Chennai earns dubious distinction of HIGHEST LEVELS OF EXHAUST POLLUTION in a study
Chennai is a city where vehicular population has grown by leaps and bounds and alongside, so has exhaust pollution.
In a study on air pollution in urban areas in 2012, titled ‘Urban Air Pollution and Co-Benefits Analysis for Indian Cities–Pune, Chennai, Indore, Ahmedabad, Surat and Rajkot,’ by S.K. Guttikunda and P. Jawahar, Chennai has been ranked first in PM10 (vehicle exhaust pollution) emission at 50,200 tons per year, compared to other cities.